CN109361037A - New energy car battery packet liquid cooling plate rises type forming method and fluid tight detection method - Google Patents
New energy car battery packet liquid cooling plate rises type forming method and fluid tight detection method Download PDFInfo
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- CN109361037A CN109361037A CN201811316915.8A CN201811316915A CN109361037A CN 109361037 A CN109361037 A CN 109361037A CN 201811316915 A CN201811316915 A CN 201811316915A CN 109361037 A CN109361037 A CN 109361037A
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- liquid cooling
- cooling plate
- lower plywood
- plate
- top plate
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- 239000007788 liquid Substances 0.000 title claims abstract description 81
- 238000001816 cooling Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000012530 fluid Substances 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000011120 plywood Substances 0.000 claims abstract description 43
- 230000004888 barrier function Effects 0.000 claims description 25
- 238000005096 rolling process Methods 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 238000009499 grossing Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 238000003892 spreading Methods 0.000 claims description 2
- 230000007480 spreading Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000003208 petroleum Substances 0.000 description 1
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- 238000007650 screen-printing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
- B21D26/027—Means for controlling fluid parameters, e.g. pressure or temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4228—Leak testing of cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Rise type forming method and fluid tight detection method the invention discloses a kind of new energy car battery packet liquid cooling plate, this method using pressure rise type be made liquid cooling plate formed up and down slab construction, realize with mould group/battery core contact surface be planar design, increase liquid cooling plate and mould group/battery core contact area, it ensure that battery pack mould group bottom is bonded completely with liquid cooling plate, it is not only suitable for square electric cell, and is suitable for cylindrical battery core.Lower plywood is water route region, ensure that the distribution flow velocity and flow of water flow.
Description
Technical field
Rise type forming method and fluid tight detection method the present invention relates to a kind of new energy car battery packet liquid cooling plate.
Background technique
According to energy consumption prediction of speed, after the year two thousand twenty, will go out between global demand of petroleum and conventional oil supply
Now net notch.Although the world actually can be difficult to reach any firm conclusions always with judgement in how many years for Global Oil reserves, based on stone
The scarcity of fossil fuel based on oil and non-renewable, the energy problem of global facing has surmounted already to price
Worry, how to get rid of the constraint of traditional energy, become influence future world political economy development a large focal spot problem.
In terms of environment, the discharge amount of carbon dioxide increases year by year, and scholarly forecast, the year two thousand thirty, CO2 emission will increase to
42300000000 tons.Under being substantially improved of environmental consciousness, it is dynamic that national governments pass through the stringent discharge standard of formulation, Development of Novel one after another
Power fuel, implementation emission reduction plan carry out restricting vehicle tail gas pollution.In recent years, the R&D intensity and industrialization of global new-energy automobile
Process has apparent topic liter, under each major premise and requirement, predicts that following 5-10 will be that new-energy automobile enters greatly
The important stage of scale industrialization, and flourishing for entire industrial chain will be driven.
China carries out subsidies granted for policy considerations in order to promote the development of new-energy automobile, to new-energy automobile.For passenger car, skill
Art requires to be mainly battery pack energy density.2018, threshold was subsidized from 95Wh/kg and is promoted to 105Wh/kg, but 105-
The corresponding subsidy regulation coefficient of 120Wh/kg is only 0.6, is 1 to 120-140Wh/kg coefficient, and to 140-160Wh/kg and
160Wh/kg or more coefficient of correspondence is respectively 1.1 and 1.2 times；
The electrokinetic cell system that new-energy automobile uses is mainly by battery modules, battery case, high pressure management system, low pressure
The composition such as management system, heat management system.
Generally, for occupation rate of market 85% lithium ion battery optimal use temperature between 20-30 degree, just
Being often used temperature should keep between 0-55 degree, and when battery core temperature is less than 0 degree, phenomena such as analysing lithium easily occurs in charging process；When
Temperature is greater than 55 degree, and lithium-ion electric core cycle life can sharply decline, and only guaranteed battery system is at reasonable temperature, ability
Enough safe and efficient operations.
Heat management system is mainly made of pipe-line system and plate circuit system.In general, plate circuit system footprint is in battery mould
Group lower section, plays the role of heating module in 0 degree or less charging；Mould group sudden discharge, causes electricity in high-power driving process
Core temperature is excessively high, at this point, cooling plate circuit system plays the role of cooling mould group/battery core temperature, guarantees battery pack in the temperature of safety
The lower electric discharge of degree.Cooling line undertakes afflux function, and the total water inlet of water and battery pack in plate circuit or total water outlet are connected.
The cooling system developed in industry at present generally has following features:
1, fitting area and own wt.At present the biggish liquid cooling plate main way of fitting area be aluminium alloy extrusions or
The liquid cooling plate being brazed after punching press, for the profile liquid cooling plate of Friction Stir Welding, thickness, which generally requires, reaches 7-10mm, this
Kind structure type weight is larger, is unfavorable for the promotion of whole packet energy density.Fitting area is lesser mouth organ tubular type coldplate road,
The cooling plate circuit overall weight of this kind is relatively light, but is typically placed in inside battery case, smaller with module contact area, and heat is handed over
It is lower to change rate, while this kind of scheme generally uses soldering connection, whole design weight advantage using metal parts with afflux pipeline
Less.
2, runner design is limited, and plate circuit cooling for harmonica-shaped tube, runner can only be along single direction, if being changed water route
Direction generally requires external pipeline and is bridged.
Summary of the invention
In order to solve the problems of in the prior art, present invention one kind in this that is designed to provide can be with battery
The fitting of packet mould group surface, the new energy car battery packet liquid cooling plate for both increasing contact surface rise type forming method.
A kind of new energy car battery packet liquid cooling plate provided by the present invention rises type forming method, which mainly includes
Top plate, lower plywood, the water route being laid among the top plate and lower plywood, water inlet and water outlet water nozzle are constituted；
The liquid cooling plate water route is risen type by compressed gas or high pressure liquid pressure, is used for through liquid cooling plate made of this method
New-energy electric vehicle battery pack internal model group is cooling.
Further, the pressure rise type the following steps are included:
Step 1: top plate and lower plywood pre-profiling；
Step 2: the molding top plate of institute and lower plywood in step 1 are smoothed；
Step 3: blank, by after smoothing top plate and lower plywood redundance cut off, leave formed product surplus；
Step 4: polishing polishes to top plate lower surface and lower plywood upper surface, and clean to buffed surface；
Step 5: applying barrier；In the water route region for needing flowing water, full-filling barrier prevents from being pressed during the rolling process
It closes；
Step 6: the edge area that top plate and lower plywood are bonded being fixed, is prevented in the subsequent operation of rolling up and down
Plate slides；Then it is rolled and is annealed, top plate and lower plywood is made to be entrenched togather, form doubling plate, intermediate water
Road is partially due to full-filling barrier, and the region is not pressed during the rolling process；It is smoothed to doubling plate is formed by；
Step 7: suppressing and rise by through flow hole and pressure rises type.The through flow hole that rises is suppressed in the inlet and outlet position in water route；From through flow hole
It is passed through compressed gas or highly pressurised liquid, in water route region since the influence of barrier, compressed gas or highly pressurised liquid enter the area
Domain makes water route spreading by interior pressure, forms water route；
Step 8: cutting and die mould or bending, the non-neat part of the molding liquid cooling plate of step 7 is cut off, can be passed through
Punching press or bending technique carry out die mould or bending, require or increase water plate rigidity to meet actual installation；
Step 9: water nozzle being inserted into the through flow hole and is welded；
Step 10: being sealed property of liquid cooling plate is detected.
Further, the barrier in the step 5 and the step 6 is coated on the top plate relative to institute
State lower plywood or while coating barrier of the lower plywood relative to the top plate, and heating baking is carried out to it
It is roasting, prevent water route part generation during the rolling process chimeric.
Further, in the step 4 by way of washing or wind cleaning to the buffed surface of top plate and lower plywood into
Row cleaning.
Further, the gas or amount of liquid being passed through in the step 7 are respectively: gas is 2~15bar；Liquid is
2bar or more.
Beneficial effects of the present invention: plate knot up and down is formed using the liquid cooling plate that method provided by the present invention is processed into
Structure, realize with mould group/battery core contact surface be big planar design, increase liquid cooling plate and mould group/battery core contact area, guarantor
It has demonstrate,proved battery pack mould group bottom to be bonded completely with liquid cooling plate, has been not only suitable for square electric cell, and be suitable for cylindrical battery core and Soft Roll
Battery core.It is water route region before upper and lower laminate, ensure that the distribution flow velocity and flow of water flow.
Detailed description of the invention
Fig. 1 is the structural exploded view of liquid cooling plate documented by the present invention；
Fig. 2 is the structural schematic diagram that liquid cooling plate provided by the present invention is filled with barrier；
Fig. 3 is the overall structure diagram of liquid cooling plate provided by the present invention；
Fig. 4 is the structural schematic diagram of the battery pack constituted using liquid cooling plate documented by the present invention；
In figure: 1- top plate, 2- lower plywood, 3- water nozzle, the water route 4-, 5- upper housing, 6- mould group, 7- heat conductive pad, 8- liquid cooling
Plate, 9- supporting pad, 10- lower case.
Specific embodiment
The drawings and specific embodiments are combined to make claimed technical solution of the invention herein further details of
Explanation.
Claimed technical solution of the invention is that a kind of new energy car battery packet liquid cooling plate rises type forming method, should
Method is used to manufacture the liquid cooling plate for new energy car battery.The structure of molding liquid cooling plate such as Fig. 1 institute prepared by the present invention
Show comprising top plate 1, lower plywood 2 and the water route 4 being laid on the lower plywood 2, the water inlet and water outlet in water route 4
Place is separately installed with water nozzle 3.
The liquid cooling plate is made up of the pressure type that rises, specifically includes the following steps:
Step 1: uncoiling generally carries out unwinding op to aluminium coiled strip using single-cantilever uncoiler；If raw material are to use
Aluminium plate does not need then using uncoiler；Top plate 1 and lower plywood 2 are all made of aluminum and aluminum alloy mateial；
Step 2: smoothing for the first time, coiled material or plate are smoothed by levelling machine, guarantee later period top plate 1 and lower layer
The fitting quality of plate 2:
Step 3: blank according to the actual situation cuts off raw material material, leaves formed product surplus；
Step 4: polishing and cleaning, to final products state place form top plate 1 lower plane and lower plywood 2 it is upper
Plane is polished, and contact surface area is increased, and improves surface contact force；
Step 5: cleaning carries out the buffed surface of top plate 1, lower plywood 2 clear by way of washing or wind cleaning
It washes, prevents the residue generated after polishing from influencing subsequent rolling process on surface；
Step 6: silk-screen printing coating, since subsequent handling needs to roll doubling plate, water route part in order to prevent
Fitting, top plate 1 relative to lower plywood 2 or while coating barrier of the lower plywood 2 relative to top plate 1, can
To use the fillers such as graphite as barrier, the position of barrier filling is the position of water route arrangement, such as Fig. 2 bend yin
Shown in shadow part；
Step 7: the barrier of barrier solidification, coating is semi liquid state state, therefore need to be solidified to it；It uses herein
Mode is that the barrier of semi liquid state is carried out to heated baking, generally toasts 2~8min by 150~350 ° of temperature, makes half liquid
The barrier of state is solidificated in metal material surface；
Step 8: doubling plate is fixed, and before next procedure rolling, should be carried out the edge area of top plate 1, lower plywood 2
It is fixed, it prevents the relative position of doubling plate during the rolling process from misplacing, influences the final form of product；According to the shape of product
Determine in general fixed point, fixed point place pan feeding side during the rolling process；The fixation of top plate 1, lower plywood 2 generally may be used
To make two layers of aluminum alloy materials be entrenched togather by the way that punching press is embedded；
Step 9: rolling, top plate 1, lower plywood 2 fixing end enter heating furnace as pan feeding side and heated, general root
According to the performance regulation heating temperature of material at 350~600 °, increase the ductility of material；During rolling, doubling plate meeting
1.2~5 times of original state are extended to, since top plate 1, lower plywood 2 have closely fit together in the operation of rolling,
The surface area of contact polishes to have obtained significant increase due to preceding processes simultaneously, top plate 1, lower plywood 2 binding force obtain
Guarantee；For applying the region of barrier, rolling can not be such that top plate 1 and lower plywood 2 is bonded, which will be in packing pressure
Water route is formed during the type that rises；Top plate 1 and lower plywood 2 after rolling is with a thickness of 0.3-3.5mm；
Step 10: annealing, after rolling deformation, material internal stress is larger, and surface smoothness is poor, while being difficult to school
It is flat；
Step 11: second of smoothing, since plate 1 and lower plywood 2 produce biggish plastic deformation to the operation of rolling at the middle and upper levels,
Its surface smoothness is difficult to reach product requirement；Utilize the pressure roller of multi-pass by 2 surface school type of top plate 1 and lower plywood herein
It is met the requirements to top plate 1 and lower plywood 2；
Step 12: suppressing the through flow hole that rises, pressure rises the compressed gas of hole forming process or the through flow hole of highly pressurised liquid, such as schemes
Shown in 3 circles, this through flow hole is also the inlet and outlet in water route；Generally use the modes such as punching press or drilling by the hole
It gets；The position of through flow hole is in the inlet and outlet position of main waterway；
Step 13: rise type, different according to the strength of materials and thickness, and gas or 2bar or more the liquid for being passed through 2-15bar are logical
Through flow hole is crossed to be filled between plate up and down, since the region coating being connected inside liquid cooling plate with through flow hole has barrier,
High pressure gas or liquid can be filled into all water route regions (region of full-filling barrier), during pressure rises by type, produce
Plastic deformation occurs for the aluminium sheet of the lower layer of product, forms flow channel for liquids；The non-water route region of product generally requires fixation, prevents the type that rises
During influence product flatness；
Step 14: cutting, neat part non-around product is cut off, guarantee the outside of top plate 1 and lower plywood 2
Edge form, fabrication holes require to carry out cutting processing including through flow hole etc.；Cutting processing generally using punching machine, plate shearing machine or its
His nonstandard cutting class mechanism；
Step 15: die mould, through the molding liquid cooling plate of step 14, top plate 1 and lower plywood 2 have convex existing for partial region
The characteristic faces such as recessed or flanging need to complete in die mould technique；
Step 16: and water nozzle 3 is welded at through flow hole, constitute water pipe head；
Step 17: being sealed property of liquid cooling plate is detected.
The through flow hole in the water route 4 in the present invention is runner direction or the hole opened perpendicular to runner, can generally use taper
The modes such as low speed drill bit or other processing carry out aperture.
In order to ensure carrying out fluid tight detection to it at this by the fluid tight of the molding liquid cooling plate of the above forming method,
Specific detection method is to be passed through 0.1-8bar gas or liquid into the water route of molding liquid cooling plate to detect liquid cooling plate, is surveyed
Amount is passed through the leakage rate of gas, and leakage rate then shows that the fluid tight of liquid cooling plate meets the requirements no more than 1-10cc/min.
Barrier documented by the present invention can be using existing any barrier, and the graphite used herein is as resistance
Every agent.
New energy car battery packet liquid cooling plate provided by the present invention rise type forming method suitable for any liquid cooling plate at
Type.
The structure for constituting new energy car battery packet by liquid cooling plate provided by the present invention is as shown in Figure 4 comprising upper casing
Body 5, mould group 6, heat conductive pad 7, liquid cooling plate 8, supporting pad 9 and lower case 10, mould group 6 are installed in lower case 10, heat conductive pad 7, liquid
Cold plate 8 and supporting pad 9 are laid between the bottom surface of mould group 6 and lower case 10, specifically 8 supporting pads 9 of liquid cooling plate and heat conductive pad
Between 7, supporting pad 9 is between liquid cooling plate 8 and lower case 10；Upper housing 5 is covered on mould group 6, heat conductive pad in lower case 10
7, liquid cooling plate 8 and supporting pad 9 are installed in the cavity being made of upper housing 5 and lower case 10；Liquid cooling plate 8 is provided by the present invention
New-energy automobile aluminium and aluminium alloy rise pattern liquid cooling plate.
8 plane abutment mould group 6 of liquid cooling plate is arranged the battery pack, forms plane contact between the two, increase mould group with
Contact area between liquid cooling plate keeps cooling effect more preferable.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, those of ordinary skill in the art are to this hair
The modification or equivalent replacement that bright technical solution is made are contained without departing from the spirit and scope of technical solution of the present invention
It covers in scope of the presently claimed invention.
Claims (7)
- The type forming method 1. a kind of new energy car battery packet liquid cooling plate rises, it is characterised in that: on the liquid cooling plate mainly includes Laminate (1), lower plywood (2), water route (4), water inlet and the water outlet being laid among the top plate (1) and lower plywood (2) Locate water nozzle (3) to constitute；The liquid cooling plate water route (4) is risen type by compressed gas or high pressure liquid pressure, through the party Liquid cooling plate made of method is cooling for New-energy electric vehicle battery pack internal model group.
- The type forming method 2. new energy car battery packet liquid cooling plate according to claim 1 rises, it is characterised in that: the pressure Power rise type the following steps are included:Step 1: top plate and lower plywood pre-profiling；Step 2: the molding top plate of institute and lower plywood in step 1 are smoothed；Step 3: blank, by after smoothing top plate and lower plywood redundance cut off, leave formed product surplus；Step 4: polishing polishes to top plate lower surface and lower plywood upper surface, and clean to buffed surface；Step 5: applying barrier；In water route (4) region for needing flowing water, full-filling barrier prevents from being pressed during the rolling process It closes；Step 6: the edge area that top plate and lower plywood are bonded being fixed, prevents the upper and lower plates in the subsequent operation of rolling from sending out Raw sliding；Then it is rolled and is annealed, top plate and lower plywood is made to be entrenched togather, form doubling plate, intermediate water route (4) Partially due to full-filling barrier, the region is not pressed during the rolling process；It is smoothed to doubling plate is formed by；Step 7: suppressing and rise by through flow hole and pressure rises type.The through flow hole that rises is suppressed in the inlet and outlet position in water route；It is passed through from through flow hole Compressed gas or highly pressurised liquid, in water route (4) region since the influence of barrier, compressed gas or highly pressurised liquid enter the area Domain makes water route spreading by interior pressure, is formed water route (4)；Step 8: cutting and die mould or bending, the non-neat part of the molding liquid cooling plate of step 7 is cut off, punching press can be passed through Or bending technique carries out die mould or bending, requires or increase water plate rigidity to meet actual installation；Step 9: water nozzle being inserted into the through flow hole and is welded；Step 10: being sealed property of liquid cooling plate is detected.
- The type forming method 3. new energy car battery packet liquid cooling plate according to claim 2 rises, it is characterised in that: the step Rapid 5 and the step 6 in the barrier be coated on the top plate (1) relative to the lower plywood (2) one side or The lower plywood (2) coats barrier relative to the one side of the top plate (1), and carries out heated baking to it, prevents from rolling Water route (4) part occurs chimeric during system.
- The type forming method 4. new energy car battery packet liquid cooling plate according to claim 4 rises, it is characterised in that: the step The buffed surface of top plate and lower plywood is cleaned by way of washing or wind cleaning in rapid 4.
- The type forming method 5. new energy car battery packet liquid cooling plate according to claim 1 rises, it is characterised in that: the step The gas or amount of liquid being passed through in rapid 7 are respectively: gas is 2~15bar；Liquid is 2bar or more.
- 6. a kind of new energy car battery packet liquid cooling plate described in claim 1-5 any one rises, type forming method is molding The fluid tight detection method of liquid cooling plate, it is characterised in that: be passed through 0.1-8bar gas or liquid into water route and liquid cooling plate is carried out Detection, measurement are passed through the leakage rate of gas, and leakage rate is not more than 1-10cc/min, then meets the requirements.
- The molding liquid cooling of type forming method 7. any new energy car battery packet liquid cooling plate as described in claim 1-5 rises Plate is used for new energy car battery packet heat management system, cools down to the mould group in battery pack, guarantees mould group in reasonable temperature The lower work of degree.
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